Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Riverside, CA

<< 1 2 3 4 5 6 7 8 9 10 11 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
951-495 A SNBRCA01DS1  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
951-495 0   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2016-11-18   
951-495 1   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2016-11-18   
951-495 2   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2016-11-18   
951-495 3   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2016-11-18   
951-495 4   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2016-11-18   
951-495 5   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2016-11-18   
951-495 6   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2016-11-18   
951-495 7   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2016-11-18   
951-495 8   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2016-11-18   
951-495 9   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2016-11-18   
951-500 A RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
951-500 0   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-07-21   
951-500 1   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-07-21   
951-500 2   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-07-21   
951-500 3   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-07-21   
951-500 4   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-07-21   
951-500 5   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-07-21   
951-500 6   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-07-21   
951-500 7   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-08-25   
951-500 8   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-08-25   
951-500 9   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-08-25   
951-504 A LSANCA039MD  9748 AMERICAN MESSAGING SERVICES, LLC 730      
951-505 A BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
951-512 A SNBRCA01DS1  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
951-512 0   981E BANDWIDTH.COM CLEC, LLC - CA 730   2018-06-09   
951-512 1   7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730   2019-05-09   
951-512 2   6529 T-MOBILE USA, INC. 730   2018-12-13   
951-512 3   6529 T-MOBILE USA, INC. 730   2018-12-13   
951-512 4   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2018-03-26   
951-512 5   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2018-03-26   
951-512 6   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2018-03-26   
951-512 7   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2018-03-26   
951-512 8   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2018-03-26   
951-512 9   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2018-03-26   
951-521 A RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
951-521 0   197D VONAGE AMERICA LLC 730   2020-06-03   
951-521 1   649C ONVOY, LLC - CA 730   2020-05-18   
951-521 2   649C ONVOY, LLC - CA 730   2020-05-18   
951-521 3   197D VONAGE AMERICA LLC 730   2020-06-03   
951-521 4   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-07-26   
951-521 5   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-05-02   
951-521 6   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-05-02   
951-521 7   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-05-02   
951-521 8   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-05-02   
951-521 9   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-05-02   
951-522 A RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
951-529 A BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
951-530 A IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
951-530 0   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-08-25   
951-530 1   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2003-11-24   
951-530 2   899D METROPCS NETWORKS, LLC 730   2011-04-14   
951-530 3   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2004-08-13   
951-530 4   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2011-02-14   
951-530 5   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
951-530 6   899D METROPCS NETWORKS, LLC 730   2011-04-14   
951-530 7   899D METROPCS NETWORKS, LLC 730   2011-03-01   
951-530 8   776C CHARTER FIBERLINK CA-CCO, LLC - CA 730   2009-05-06   
951-530 9   624H ONVOY SPECTRUM, LLC 730   2025-05-16   
951-533 A BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
951-534 A RVSDCAQUPS0  776C CHARTER FIBERLINK CA-CCO, LLC - CA 730      
951-534 0   776C CHARTER FIBERLINK CA-CCO, LLC - CA 730   2005-03-10   
951-534 1   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2005-04-04   
951-534 2   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2005-04-04   
951-534 3   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2005-04-04   
951-534 4   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2005-04-04   
951-534 5   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-08-20   
951-534 6   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2005-04-04   
951-534 7   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2005-04-04   
951-534 8   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2005-04-04   
951-534 9   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2005-04-04   
951-536 A TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
951-536 0   899D METROPCS NETWORKS, LLC 730      
951-536 1   6529 T-MOBILE USA, INC. 730      
951-536 2   6529 T-MOBILE USA, INC. 730      
951-536 3   6529 T-MOBILE USA, INC. 730      
951-536 4   6529 T-MOBILE USA, INC. 730      
951-536 5   6529 T-MOBILE USA, INC. 730      
951-536 6   6529 T-MOBILE USA, INC. 730      
951-536 7   6529 T-MOBILE USA, INC. 730      
951-536 8   6529 T-MOBILE USA, INC. 730      
951-536 9   899D METROPCS NETWORKS, LLC 730      
951-538 A TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
951-538 0   899D METROPCS NETWORKS, LLC 730      
951-538 1   6529 T-MOBILE USA, INC. 730      
951-538 2   6529 T-MOBILE USA, INC. 730      
951-538 3   6529 T-MOBILE USA, INC. 730      
951-538 4   6529 T-MOBILE USA, INC. 730      
951-538 5   6529 T-MOBILE USA, INC. 730      
951-538 6   6529 T-MOBILE USA, INC. 730      
951-538 7   6529 T-MOBILE USA, INC. 730      
951-538 8   6529 T-MOBILE USA, INC. 730      
951-538 9   6529 T-MOBILE USA, INC. 730      
951-542 A RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
951-542 0   6529 T-MOBILE USA, INC. 730   2020-09-20   
951-542 1   981E BANDWIDTH.COM CLEC, LLC - CA 730   2020-09-20   
951-542 2   981E BANDWIDTH.COM CLEC, LLC - CA 730   2020-09-20   
951-542 3   981E BANDWIDTH.COM CLEC, LLC - CA 730   2020-09-20   
951-542 4   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-09-19   
951-542 5   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-09-19   

<< 1 2 3 4 5 6 7 8 9 10 11 >>

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.